On Tue, Jul 06, 2010 at 06:41:06PM +0800, Tang Jianwei wrote: > I tried to create some swap files in /dev directory for my desktop. > the dd and mkswap were ok. but when I try to swapon it, i get this: > > # swapon /dev/myswap > swapon: /dev/myswap: Invalid argument > > but when I mv the file to some other directory like /mnt or /, the > swapon works. > > could sb. tell me why? /dev is not a real directory for data files. You should actually make a separate partition for swap Otherwise, you can put it in some real file spaca such as in /usr or where you left a lot of space. That is often done to increase available swap space when the originally created swap partition is not large enough - add some from file space. ////jerry > > -- > Tang Jianwei > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos